Rangeland Ecology & Management
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- Library Collection RecordOne experiment involving steers fed low-quality grass diets singly and mixed with native forbs, native shrubs, or alfalfa (Medicago sativa L.) was conducted to compare the influence of these diets on…Publication Date 1992-11-01
- croton pottsii
- ammonia
- native plants
- volatile fatty acids
- Sphaeralcea coccinea
- Medicago sativa
- dietary fiber
- Atriplex canescens
- Croton
- steers
- digestibility
- digesta
- kinetics
- pH
- cattle feeding
- shrubs
- diets
- rumen fermentation
- rangelands
- Cercocarpus montanus
- New Mexico
- forage
- Library Collection RecordBur buttercup (Ranunculus testiculatus Crantz) is an alien annual species that has spread rapidly through range and croplands in the western United States. This species is potentially poisonous and…Publication Date 1992-07-01
- scarification
- seed treatments
- weed biology
- light relations
- Ranunculus
- acid treatment
- cooling
- washing
- ranunculus testiculatus
- poisonous weeds
- light
- Western United States
- air temperature
- environmental factors
- seed germination
- seed dormancy
- rangelands
- Library Collection RecordFire on rangelands used as a management tool or as an unwanted wildfire removes vegetation cover. Vegetation cover is thought to be a dominate factor controlling surface runoff and erosion.…Publication Date 1992-09-01
- ground cover
- soil erosion
- spatial variation
- ground vegetation
- loam soils
- fires
- fire effects
- runoff
- prescribed burning
- sandy loam soils
- natural grasslands
- range management
- seasonal variation
- rangelands
- Arizona
- Library Collection RecordIncreasing populations of big game animals are a problem for private landowners in some parts of western North America. Influence of bit game costs, hunting-related income, noneconomic benefits, size…Publication Date 1993-01-01
- crop damage
- game animals
- private ownership
- yield losses
- costs and returns
- surveys
- population density
- hunting
- Odocoileus virginianus
- Antilocapra americana
- Odocoileus hemionus
- Cervus elaphus canadensis
- wildlife management
- crop yield
- Montana
- rangelands
- forage
- Library Collection RecordTebuthiuron [N-[5-(1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl]N,N'-dimethylurea] controls small trees in regrown pinyon-juniper woodland chainings. Precise applications by hand minimize cost and…Publication Date 1993-01-01
- Pinus monophylla
- woody plant invasion
- Juniperus osteosperma
- placement
- Pinus edulis
- tebuthiuron
- brush control
- invasion
- chemical control
- application rates
- rangelands
- Utah
- Library Collection RecordThis study was conducted on Chihuahuan desert range near Las Cruces, in southcentral New Mexico, to determine the relationship of blacktailed jackrabbit (Lepus californicus) densities to good (GC)…Publication Date 1993-11-01
- Lepus californicus
- botanical composition
- rangelands
- New Mexico
- Library Collection RecordNutritional quality of range plants eaten by white-tailed deer (Odocoileus virginianus Raf.) in southern Texas is lowest during summer and fall. Nutritional quality of shrub regrowth is typically…Publication Date 1992-11-01
- pruning
- roller chopping
- Acacia rigidula
- leaves
- Acacia berlandieri
- stems
- browse plants
- protein content
- Odocoileus virginianus
- regrowth
- crude protein
- shrubs
- in vitro digestibility
- Texas
- seasonal variation
- rangelands
- nutritive value
- chemical constituents of plants
- Library Collection RecordIn 1974 we selected 8 pairs of gully headcuts on the Santa Rita Experimental Range. Mesquite (Prosopis velutina Woot.) on the watershed of 1 headcut of each pair was killed with diesel oil. Densities…Publication Date 1993-03-01
- Prosopis velutina
- semiarid grasslands
- watersheds
- soil erosion
- brush control
- vegetation management
- rain
- runoff
- plant density
- losses from soil
- rangelands
- grasses
- Arizona
- Library Collection RecordThe importance of evaluating multiple resource values on rangelands is demonstrated in this study of California's 3.0 million hectares of oak-covered (Quercus spp.) hardwood rangelands.…Publication Date 1993-03-01
- hardwoods
- livestock enterprises
- econometric models
- multiple use
- economic analysis
- hunting
- fuelwood
- Quercus douglasii
- productivity
- California
- range management
- rangelands
- Library Collection RecordImproving wildlife habitat through the introduction of nutritious forage species is a management tool that may be used to increase target populations such as deer. By increasing deer numbers the…Publication Date 1993-01-01
- Onobrychis viciifolia
- leucaena refusa
- engelmannia pinnatifida
- Leucaena
- Asteraceae
- Trifolium subterraneum
- Medicago sativa
- Desmanthus illinoensis
- browse plants
- protein content
- Desmanthus
- Atriplex canescens
- crude protein
- biomass production
- Odocoileus
- Texas
- wildlife management
- prairies
- rangelands
- nutritive value
- forage
- chemical constituents of plants
- Library Collection RecordBecause of the ongoing controversy about shrub forage value for different ungulates and significance of the shrub communities for spring-fall grazing in southcentral Wyoming, the relative importance…Publication Date 1992-11-01
- livestock-wildlife relationships
- common use grazing
- common lands
- wildlife
- Purshia tridentata
- browse plants
- Cervus elaphus
- Antilocapra americana
- mountain grasslands
- Wyoming
- Artemisia tridentata
- plant communities
- Odocoileus hemionus
- shrubs
- diets
- sheep
- cattle
- rangelands
- grasses
- forage
- Library Collection RecordHoney mesquite (Prosopis glandulosa Torr. var. glandulosa populations continue to expand and become more dense, even on areas once "successfully" treated either with herbicides or by…Publication Date 1992-11-01
- fenuron
- shrub invasion
- manual weed control
- deserts
- arid zones
- Prosopis glandulosa var. glandulosa
- grasslands
- brush control
- mortality
- seedlings
- chemical control
- plant density
- rangelands
- New Mexico
- Library Collection RecordLittle evidence has been found to relate fire intensity to herbaceous vegetation response. Our objective was to determine if components of post-fire herbaceous standing crop in a tallgrass prairie…Publication Date 1992-11-01
- canonical correlation
- fire behavior
- fire intensity
- grasslands
- fire ecology
- fires
- fire effects
- vegetation
- regrowth
- Oklahoma
- plant communities
- prairies
- rangelands
- grasses
- forage
- Library Collection RecordEconomic injury levels (EILs)—the minimum density of insects that would be required to warrant treatment—were estimated for the 4 most common insecticides sprayed on grasshoppers in Alberta. The…Publication Date 1993-09-01
- insecticides
- cost-benefit analysis
- Alberta
- range management
- rangelands
- insect pests
- Library Collection RecordRunoff prediction is an important component of any process-based soil erosion model. In this paper we evaluate the runoff prediction capabilities of a new soil erosion model, WEPP, on sagebrush…Publication Date 1992-09-01
- erosion control
- simulation models
- water erosion
- mathematical models
- prediction
- runoff
- Artemisia tridentata
- range management
- rangelands
- Library Collection RecordSoil water withdrawal and vegetation characteristics of mountain big sagebrush (Artemisia tridentala ssp. vaseyana Rydb. Beetie) areas sprayed with 2,4-D (2,4-Dichlorophenoxyacetic acid) were…Publication Date 1993-03-01
- 2,4-D
- brush control
- vegetation management
- chemical control
- soil water content
- biomass production
- Wyoming
- Artemisia tridentata
- botanical composition
- rangelands
- soil water regimes
- Library Collection RecordWe evaluated winter weight gain of captive male white-tailed deer (Odocoileus virginianus) that grazed pastures of berseem (Trifolium alexandrinium L.), white (T. repens L.), crimson (T. incarnatum L…Publication Date 1992-11-01
- Trifolium alexandrinum
- Trifolium incarnatum
- Trifolium subterraneum
- Trifolium repens
- Lolium multiflorum
- liveweight gain
- Odocoileus virginianus
- pastures
- diets
- wildlife management
- rangelands
- nutritive value
- Library Collection RecordRecent concerns about range condition measures are not the first concerns about measuring the health of rangelands. To examine why change has not occurred in this area, this paper explores the…Publication Date 1993-03-01
- theory
- climax communities
- plant ecology
- ecological succession
- botanical composition
- rangelands
- Library Collection RecordManagers and range scientists are interested in the response of such variables as forage production and animal performance to various environmental and management factors. Due to the inability to…Publication Date 1993-03-01
- data analysis
- simulation models
- mathematical models
- decision making
- range management
- rangelands
- forage
- Library Collection RecordChanges in rangeland vegetation integrate the consequences of livestock grazing intensity and possible climate change, as well as other factors. Because vegetation changes tend to be very slow in dry…Publication Date 1992-11-01
- xerophytes
- Krascheninnikovia
- Hilaria
- change
- Hilaria jamesii
- eremosemium spinosa
- Achnatherum hymenoides
- ecological succession
- Chrysothamnus viscidiflorus
- vegetation
- Artemisia tridentata
- plant communities
- rangelands
- Utah
- livestock
- grazing
- Library Collection RecordMethodology for assessing trend in range condition is still evolving. This paper demonstrates use of Dice's community similarity coefficient, 2a/(2a + b + c), with communities present at 3 times…Publication Date 1993-03-01
- assessment
- data analysis
- mathematical models
- plant ecology
- trends
- plant communities
- rangelands
- Library Collection RecordStudies were made at 2 rangeland areas in south Texas to measure canopy cover and distribution with an airborne laser profiler. In a comparison of laser and ground measurements of canopy cover on the…Publication Date 1992-03-01
- lasers
- evapotranspiration
- measurements
- remote sensing
- vegetation
- shrubs
- spatial distribution
- Texas
- rangelands
- Library Collection RecordA technique for recording time-temperature curves within field-scale range fires was accomplished using a commercially available data logger capable of rapidly reading large numbers of thermocouples…Publication Date 1992-03-01
- thermocouples
- fire behavior
- measurements
- fires
- prescribed burning
- Texas
- temperature
- rangelands
- Library Collection RecordA comprehensive system has been designed to serve as a basis for rangeland condition and grazing capacity assessment. It is important that research information and knowledge be transferred to land…Publication Date 1992-03-01
- databases
- expert systems
- carrying capacity
- decision making
- crop production
- pastures
- range management
- rangelands
- grazing
- Library Collection RecordHabitat-correlated differences in laboratory germination response under autumn (15 degrees C) and winter (1 degree C) temperature regimes were examined for 69 big sagebrush (Artemisia tridentata Nutt…Publication Date 1992-01-01
- Artemisia tridentata spp. wyomingensis
- intraspecific variation
- population ecology
- artemisia tridentata subsp. vaseyana
- variation
- weed biology
- habitats
- seedling emergence
- air temperature
- adaptation
- winter
- Artemisia tridentata
- seed germination
- seed dormancy
- rangelands
- Library Collection RecordFour potential cattle grazing systems on summer range in the Sierra Nevada are compared in terms of deer harvest, number of hunters attracted, and the net economic value of hunting. Research on deer…Publication Date 1991-07-01
- net economic benefit
- national forests
- carrying capacity
- population density
- economic analysis
- hunting
- multiple land use
- pastures
- rotational grazing
- grazing intensity
- Odocoileus hemionus
- California
- cattle
- range management
- rangelands
- Library Collection RecordThe Sandy Ridge Site of southern New Mexico was studied to determine the dependance of total standing crop and components of standing crop on range condition rating. Total standing crop which…Publication Date 1991-11-01
- Prosopis glandulosa
- ecological succession
- botanical composition
- rangelands
- New Mexico
- forage
- Library Collection RecordHoney mesquite (Prosopis glandulosa Torr. var. glandulosa) stem flow was measured on days with contrasting environmental conditions during the 1989 growing season in Texas. Midday stem flow varied…Publication Date 1992-01-01
- evapotranspiration
- sap flow
- diurnal variation
- Prosopis glandulosa var. glandulosa
- watersheds
- transpiration
- environmental factors
- Texas
- rangelands
- Library Collection RecordThe effects of late fall grazing, application of picloram (4 amino-3,5,6-trichloro-2-pyridinecarboxylic acid), and seeding on the reinfestation by knapweed (Centaurea diffusa Lam.) were investigated…Publication Date 1992-03-01
- crop mixtures
- Medicago sativa
- Centaurea diffusa
- biological control
- British Columbia
- sown grasslands
- Psathyrostachys juncea
- Agropyron cristatum
- weed control
- chemical control
- cattle
- picloram
- plant competition
- rangelands
- grazing
- Library Collection RecordIn the central California region of annual rangeland, herbage production beneath blue oak (Quercus douglasii Hook & Arn.) canopies is greater and production beneath the canopies of interior live…Publication Date 1991-05-01
- cation exchange capacity
- edaphic factors
- soil organic matter
- soil density
- soil properties
- Quercus douglasii
- Quercus wislizeni
- Pinus sabiniana
- soil fertility
- pastures
- growth rate
- California
- rangelands
- canopy
- bulk density
- forage
- Library Collection RecordTo help local Niger government authorities and donor countries ameliorate conditions in the advent of drought, a rapid yet simple means to assess annual herbaceous production at the end of the rainy…Publication Date 1992-05-01
- Sahel
- Niger
- mathematical models
- prediction
- meteorological data
- regression analysis
- rain
- crop production
- biomass
- rangelands
- forage
- Library Collection RecordA total of 341 Utah rural land sales occurring between 1980 and 1987 were analyzed to identify and quantify the determinants of Utah rangeland and ranch prices. Two factors statistically influenced…Publication Date 1992-05-01
- valuation
- selling prices
- rural economy
- econometric models
- land values
- ranching
- prediction
- regression analysis
- rangelands
- Utah
- Library Collection RecordLow vigor of seedlings and stand failures plague many revegetation efforts in semiarid and arid rangelands. Phototoxicity, sandbur (Cenchrus incertus M.A. Curtis) competition, seedbed preparation (…Publication Date 1991-05-01
- plant residues
- Cenchrus incertus
- crop establishment
- seedbed preparation
- Eragrostis curvula
- allelopathy
- Quercus havardii
- seedlings
- nitrogen fertilizers
- vigor
- environmental factors
- Texas
- plant competition
- rangelands
- Library Collection RecordTwo experiments with steers were conducted to evaluate the influence of native forbs and shrubs on nitrogen utilization by cattle. Diets in Exp. 1 were blue grams (Bouteloua gracilis [H.B.K.]) (BG),…Publication Date 1992-03-01
- barley straw
- croton pottsii
- nitrogen retention
- Hordeum vulgare
- Sphaeralcea coccinea
- nitrogen metabolism
- Medicago sativa
- alfalfa
- alfalfa hay
- Atriplex canescens
- Croton
- hay
- steers
- cattle feeding
- Bouteloua gracilis
- shrubs
- rangelands
- nutritive value
- quality
- Cercocarpus montanus
- New Mexico
- beef cattle
- forage
- Library Collection RecordEven though the Wilderness Act of 1964 provided for continuation of livestock grazing after wilderness designation, there has been continued debate about the Forest Service's implementation of…Publication Date 1991-09-01
- land policy
- permits
- animal unit month
- coronado national forest
- Tonto National Forest
- USDA
- wilderness
- national forests
- multiple land use
- grazing intensity
- range management
- rangelands
- grazing
- Arizona
- Library Collection RecordSeed dormancy typically limits stand establishment of Indian ricegrass [Oryzopsis hymenoides (Roem. and Schult.) Ricker]. The mechanical and physiological mechanisms that contribute to dormancy must…Publication Date 1992-03-01
- embryo dormancy
- mechanical dormancy
- physiological dormancy
- dormancy
- testa
- revegetation plants
- Achnatherum hymenoides
- scarification
- seed treatments
- cooling
- stand establishment
- seed germination
- seed dormancy
- rangelands
- Library Collection RecordLine transect procedures were used to estimate density of lesser prairie-chicken (Tympanuchus pallidicinctus) in tebuthiuron-treated and untreated sand shinnery oak (Quercus havardii Rydb.)…Publication Date 1991-07-01
- tympanuchus pallidicinctus
- population ecology
- habitat destruction
- Phasianidae
- tebuthiuron
- population density
- Quercus havardii
- vegetation
- Texas
- range management
- seasonal variation
- botanical composition
- rangelands
- New Mexico
- Library Collection RecordPerennial plants collected from 5 north-central Arizona semiarid locations were assayed for tebuthiuron [N-5-(1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl-N,N'-dimethylurea] and its metabolites…Publication Date 1991-05-01
- long term experiments
- herbicide residues
- metabolites
- Bouteloua eriopoda
- Bouteloua curtipendula
- tebuthiuron
- Poaceae
- Bouteloua gracilis
- shrubs
- semiarid zones
- application rates
- rangelands
- Arizona
- forage
- Library Collection RecordThe government must manage public rangeland in the face of alternative multiple use interests, including wildlife and domestic livestock production. The objectives of this study were to estimate a…Publication Date 1991-07-01
- linear programming
- mixed grazing
- production possibilities
- economic benefits
- production possibilities frontier
- marginal rates of substitution
- marginal returns
- animal production
- multiple land use
- cost-benefit analysis
- stocking rate
- Antilocapra americana
- biomass production
- Wyoming
- grazing intensity
- cattle
- range management
- rangelands
- forage
- Library Collection RecordFactors responsible for poor recruitment of blue oak (Quercus douglasii H. & A.) and valley oak (Q. lobata Nee) need to be determined on California hardwood rangelands so that management…Publication Date 1992-01-01
- shading
- Quercus lobata
- recruitment
- Quercus
- Quercus douglasii
- seedling emergence
- stand establishment
- seedlings
- California
- rangelands
- Library Collection RecordThis paper discusses the criteria needed for quantitative evidence of overgrazing and outlines some of the main pasture and external factors that promote overgrazing by herbivores. Overgrazing is…Publication Date 1991-09-01
- wool production
- econometric models
- animal production
- economic analysis
- stocking rate
- pastures
- sheep
- overgrazing
- cattle
- rangelands
- Library Collection RecordRange revegetation research has been dominated by empirical studies that provide some information about what works or does not work under a given set of conditions, but tell us little or nothing…Publication Date 1991-11-01
- semiarid grasslands
- ecological succession
- land restoration
- rangelands
- Library Collection RecordThe role of ungulate grazing in shaping rangeland ecosystems is well known relative to other important plant-animal interactions such as pollination, seed dispersal, granivory, and belowground…Publication Date 1991-11-01
- seed dispersal
- plant ecology
- land restoration
- rangelands
- Library Collection RecordInterest in evaluating theoretical considerations in traditional methods of determining range condition have increased recently with application of different analytical techniques. In this study, the…Publication Date 1991-07-01
- cluster analysis
- quantitative climax approach
- deserts
- land classification
- secondary succession
- spatial variation
- climax communities
- grasslands
- plant ecology
- ecological succession
- pastures
- biomass production
- botanical composition
- rangelands
- New Mexico
- forage
- Library Collection RecordDissatisfaction persists with current approaches to range condition and trend assessment. Sometimes assessed condition does not truly represent the past or the potential of range. One of the likely…Publication Date 1991-09-01
- ordination
- site factors
- classification
- plant ecology
- ecological succession
- vegetation
- environmental factors
- range management
- rangelands
- Library Collection RecordThe Water Erosion Prediction Project (WEPP) is a new water erosion prediction technology being developed by the USDA-Agricultural Research Service to replace the Universal Soil Loss Equation.…Publication Date 1991-05-01
- edaphic factors
- interception
- simulation models
- water erosion
- site factors
- soil types
- ground vegetation
- prediction
- steppes
- rain
- runoff
- prairies
- losses from soil
- rangelands
- canopy
- infiltration
- Library Collection RecordVegetation cover may afford many species of prey animals reduced risk of being detected and/or attacked by predators. In this study, feeding stations were provided for black-tailed jackrabbits (Lepus…Publication Date 1991-09-01
- predation
- Lepus californicus
- shrub cover
- risk
- foraging
- spatial variation
- herbivores
- shrubs
- rangelands
- feed intake
- Library Collection RecordThe concepts of relatively stable multiple states and thresholds or transitions between these states has received little attention in range management until recently. On North American rangelands…Publication Date 1991-09-01
- desert grasslands
- annual grasslands
- climax communities
- grasslands
- plant ecology
- ecological succession
- natural grasslands
- climatic zones
- range management
- rangelands
- United States
- grazing
- Library Collection RecordA micro-watershed design is presented for use in watershed research projects. The plot size is 5 m (1 X 5 m) and uses low cost materials for construction. This plot size is suitable for surface flow…Publication Date 1991-07-01
- surface water
- water flow
- microwatersheds
- watersheds
- soil erosion
- design
- watershed hydrology
- rangelands
- Library Collection RecordSeeding rangeland is a challenge for rangeland scientists, especially on those soils with tendency to crusting. Although some information is available on how soil conditioners affect emergence of…Publication Date 1992-05-01
- soil treatment
- polyacrylamide
- setaria macrostachya
- Sporobolus airoides
- sowing
- Bouteloua curtipendula
- Panicum antidotale
- crusts
- seedling emergence
- stand establishment
- Bothriochloa ischaemum
- range management
- rangelands
- New Mexico
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